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Andreev Bound States at the Interface of Antiferromagnets and d-wave Superconductors

Brian M. Andersen·P. Hedegaard
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Abstract

We set up a simple transfer matrix formalism to study the existence of bound states at interfaces and in junctions between antiferromagnets and d-wave superconductors. The well-studied zero energy mode at the {110} interface between an insulator and a d-wave superconductor is spin split when the insulator is an antiferromagnet. This has as a consequence that any competing interface induced superconducting order parameter that breaks the time reversal symmetry needs to exceed a critical value before a charge current is induced along the interface.

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Brian M. Andersen, P. Hedegaard. 2002-06-22. Andreev Bound States at the Interface of Antiferromagnets and d-wave Superconductors. https://doi.org/10.1103/physrevb.66.104515

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